I have a 2009 kx250f and I got it last year at about this time and I only ride it around my house. I would get into riding then out of riding so I would only ride about 4 times a month. I would keep my bike clean and filled with 91 octane like it says... but... i never put any oil in it or got the oil changed. HOWEVER, the bike still runs like the first day I got it. which is just fine. I haven't noticed any change in the engine sound or performance. Its been about 2 months since I rode it last. I look in my oil window on the side of the engine and all I see is metal parts. Is this bad? also, tomorrow im taking it in for an oil change. What do you think could happen? Thanks